With volatility (VXX) rising sharply, stock markets will have a wider gap between the winners and the losers.WinnersExpect technology investors to add back to their position in artificial intelligence stocks. An analyst’s upgrade of Super Computer Micro (SMCI) lifted its share price. Nvidia (NVDA) may inch higher.Advanced Micro Devices (AMD), which trails Nvidia in the more profitable server AI market, announced AI-related offerings in its PC. Its inclusion in AMD Ryzen PRO chips might help desktop sales. Still, the PC market is a low-margin business. Dell (DELL) and HP Inc. (HPQ) prefer to…